Combine all three ingredients for the sauce and set aside in a small bowl. You can get creative with the sauce if you like by adding ginger, fish sauce, etc.
For the filling:
Mix all the ingredients for the filling in a large bowl. Set aside. Open the package of wonton wrappers and remove four or five. Place the others back in the bag to prevent them drying out. Using a pastry brush, apply the egg/water mixture to the outer edge of the wonton wrapper.
Place a tablespoon of filling onto the center of the wonton wrapper, Fold the wonton wrapper over the filling and securely crimp the edges. (See video)
Keep the wontons covered in plastic wrap until all are filled and crimped.
Heat the vegetable oil in a large skillet over medium heat. Add the potstickers to the pan, one at a time, with one side down. Do not overcrowd the pan. Do two batches if needed. They need their space to cook the filling properly. Cook until the wrapper is nicely seared then flip them over and cook the opposite side.
When both sides are seared, grab a lid for the skillet. With the heat still on medium, pour 1 cup of chicken stock in to the pan and quickly place the lid on top. Steam the potstickers until the filling is cooked to a temperature of 165 degrees. You will be able to fell that the filling has firmed up. Remove the potstickers from the pan and keep warm in a low oven if you have to cook in batches. If the chicken broth evaporates, add more. Do not let the potstickers burn!
Serve on a platter garnished with scallions with side dishes of dipping sauce, hot chili oil, and Chinese mustard.
Notes
Approximate nutrition information is provided as a convenience and courtesy only. You are encouraged to do your own calculations if precise data is required.
We take every effort to ensure that the estimated meal cost per serving is accurate. We use a meal cost analysis application that estimates the cost of a recipe based on groceries purchased at a Walmart store in my geographical area, northern California.